send_notification

Send a desktop toast notification.

SERVERDesktop Commander MCP Server SOURCE19miha99/system-monitor-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/19miha99-system-monitor-mcp/send-notification.md

WHAT IT DOES

What send_notification does on Desktop Commander MCP Server

AI agents use send_notification to create or update resources in Desktop Commander MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Desktop Commander MCP Server environment.

RISK

Why send_notification is rated Medium

Sending a desktop notification is a reversible action that creates temporary UI elements without modifying, deleting, or executing code. It falls clearly under Write (creates a temporary notification) rather than Execute (no code execution) or Destructive (no permanent side effects). The blast radius is minimal—a misused notification cannot compromise system integrity or cause data loss.

From the tool's definition Tool is called 'send_notification' and explicitly described as 'Send a desktop toast notification.' Toast notifications are transient UI messages that do not persist or modify underlying system state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs send_notification safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Desktop Commander MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For send_notification, this is the rule to start with:

send_notification Rate-limited

send_notification stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "send_notification": {
      "limits": [
        {
          "counter": "send_notification_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Desktop Commander MCP Server, apply this rule, and every send_notification call is checked against it from then on.

FAQ

Questions about send_notification

What does the send_notification tool do? +

Send a desktop toast notification. It is categorised as a Write tool in the Desktop Commander MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on send_notification? +

Register the Desktop Commander MCP Server MCP server in PolicyLayer and add a rule for send_notification: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Desktop Commander MCP Server. Nothing to install.

What risk level is send_notification? +

send_notification is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit send_notification? +

Yes. Add a rate_limit block to the send_notification rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block send_notification completely? +

Set action: deny in the PolicyLayer policy for send_notification. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides send_notification? +

send_notification is provided by the Desktop Commander MCP Server MCP server (19miha99/system-monitor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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